摘要
水文序列的一致性分析是水文计算中的一项重要内容 ,以黄河中游的无定河流域为例 ,运用斯波曼秩次相关检验法检验了该流域水文序列的趋势性 ,然后 ,利用有序聚类分析法推估了人类活动对序列的显著影响干扰点。结果表明 :1972年是无定河流域水文序列的突变点 ,1972年以后人类活动对该流域水文的影响更为显著。
Analysis on the stationary of hydrological series is an important content in hydrology calculation. Taking Wudinghe River as example, the tendency of hydrological series of the basin is examined with Spearman correlative analysis method. And meanwhile, the transition point of the runoff coefficient series affected by human activities is detected with cluster technique method. The results show that 1972 is the transition point of hydrological series of Wudinghe, and human activities have affected significantly on hydrology of Wudinghe basin since 1972.
出处
《西北水资源与水工程》
2001年第3期13-15,共3页
Northwest Water Resources & Water Engineering
基金
黄河水保科研基金项目 (项目编号 :2 0 0 0 - 0 3 - 0 3)
关键词
人类活动
水文序列
聚类分析
干扰点
黄河中游
Human activities
Hydrological series
Cluster analysis technique
Transition point
